South Laurel, MD has a population of 26,952 and is the 1,604th largest city in the United States. The population density is 3,340 per sq mi which is 604% higher than the Maryland average and 3586% higher than the national average. The median age in South Laurel is 34 which is approximately 10% lower than the Maryland average of 38. In South Laurel, 50% of the population over 15 years of age are married, 67% speak English and 13% speak Spanish. 29% of South Laurel residents were born in Maryland, 41% were born out of state, 2% were born outside of the United States and 28% were foreign born.